mirror of
https://github.com/demostf/demo.js
synced 2026-06-04 00:54:14 +02:00
bit of splitting of methods
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Robin Appelman
parent
fc63e6b0c4
commit
ff1b2b17b3
1 changed files with 126 additions and 117 deletions
251
parser.js
251
parser.js
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@ -1,12 +1,15 @@
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var util = require('util');
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var Packet = require('./packet');
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var ConsoleCmd = require('./consolecmd');
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var StringTable = require('./stringtable');
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var DataTable = require('./datatable');
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var BitStream = require('bit-buffer').BitStream;
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var EventEmitter = require('events').EventEmitter;
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var Parser = function (steam) {
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this.stream = steam;
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this.state = {
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tick : 0,
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chat : [],
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users : {},
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deaths : [],
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@ -16,8 +19,11 @@ var Parser = function (steam) {
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};
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this.packets = [];
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this.strings = {};
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this.on('packet', this.updateState.bind(this));
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};
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util.inherits(Parser, EventEmitter);
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Parser.MessageType = {
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Sigon : 1,
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Packet : 2,
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@ -46,131 +52,16 @@ Parser.prototype.readHeader = function () {
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};
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Parser.prototype.parseBody = function () {
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var message, i, tick = 0;
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while (message = this.readMessage()) {
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if (message.parse) {
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var packets = message.parse();
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for (i = 0; i < packets.length; i++) {
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var packet = packets[i];
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if (packet) {
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this.packets.push(packet);
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}
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if (!packet) {
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continue;
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}
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switch (packet.packetType) {
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case 'netTick':
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if (this.state.startTick === 0) {
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this.state.startTick = packet.tick;
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}
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tick = packet.tick;
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break;
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case 'serverInfo':
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this.state.intervalPerTick = packet.intervalPerTick;
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break;
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case 'sayText2':
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this.state.chat.push({
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kind: packet.kind,
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from: packet.from,
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text: packet.text,
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tick: tick
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});
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break;
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case 'stringTable':
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if (packet.tables.userinfo) {
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for (var j = 0; j < packet.tables.userinfo.length; j++) {
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if (packet.tables.userinfo[j].extraData) {
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var name = packet.tables.userinfo[j].extraData[0];
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var steamId = packet.tables.userinfo[j].extraData[2];
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var userId = packet.tables.userinfo[j].extraData[1].charCodeAt(0);
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this.state.users[userId] = {
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name : name,
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userId : userId,
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steamId: steamId,
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classes: {}
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}
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}
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}
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}
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break;
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case 'gameEvent':
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switch (packet.event.name) {
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case 'player_death':
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// todo get player names, not same id as the name string table
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var assister = packet.event.values.assister < 32 ? packet.event.values.assister : null;
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this.state.deaths.push({
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killer : packet.event.values.attacker,
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assister: assister,
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victim : packet.event.values.userid,
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weapon : packet.event.values.weapon,
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tick : tick
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});
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break;
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case 'teamplay_round_win':
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if (packet.event.values.winreason !== 6) {// 6 = timelimit
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this.state.rounds.push({
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winner : packet.event.values.team === 2 ? 'red' : 'blue',
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length : packet.event.values.round_time,
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end_tick: tick
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});
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}
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break;
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case 'player_spawn':
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userId = packet.event.values.userid;
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if (this.state.users[userId]) {
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if (!this.state.users[userId].team) { //only register first spawn
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this.state.users[userId].team = packet.event.values.team === 2 ? 'red' : 'blue'
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}
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var classId = packet.event.values.class;
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if (!this.state.users[userId].classes[classId]) {
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this.state.users[userId].classes[classId] = 0;
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}
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this.state.users[userId].classes[classId]++;
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}
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break;
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}
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break;
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}
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}
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}
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var message, i;
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while (message = this.readMessage(this.stream)) {
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this.handleMessage(message);
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}
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this.strings = StringTable.tables;
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return this.state;
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};
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Parser.prototype.readMessage = function () {
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//console.log();
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//console.log('start message');
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//console.log(this.stream.byteIndex);
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var type = this.stream.readBits(8);
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//console.log(type);
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if (type === Parser.MessageType.Stop) {
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return null;
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}
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var tick = this.stream.readInt32();
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var data, start, length, buffer;
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switch (type) {
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case Parser.MessageType.Sigon:
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case Parser.MessageType.Packet:
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this.stream.byteIndex += 0x54; // command/sequence info
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break;
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case Parser.MessageType.UserCmd:
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this.stream.byteIndex += 0x04; // unknown / outgoing sequence
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break;
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case Parser.MessageType.Stop:
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return false;
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case Parser.MessageType.SyncTick:
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return true;
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}
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length = this.stream.readInt32();
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//console.log('message length: ' + length + ' byte');
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start = this.stream.byteIndex;
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buffer = this.stream.buffer.slice(start, start + length);
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this.stream.byteIndex += length;
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data = new BitStream(buffer);
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//console.log(this.stream.buffer);
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Parser.prototype.parseMessage = function (buffer, type, tick, length) {
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var data = new BitStream(buffer);
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switch (type) {
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case Parser.MessageType.Sigon:
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@ -187,8 +78,126 @@ Parser.prototype.readMessage = function () {
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return new StringTable(type, tick, data, length);
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default:
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return true;
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//throw 'Unknown message type: ' + type;
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}
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};
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Parser.prototype.handleMessage = function (message) {
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if (message.parse) {
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var packets = message.parse();
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for (i = 0; i < packets.length; i++) {
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var packet = packets[i];
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if (packet) {
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this.emit('packet', packet);
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this.packets.push(packet);
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}
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}
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}
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};
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Parser.prototype.updateState = function (packet) {
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switch (packet.packetType) {
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case 'netTick':
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if (this.state.startTick === 0) {
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this.state.startTick = packet.tick;
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}
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this.state.tick = packet.tick;
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break;
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case 'serverInfo':
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this.state.intervalPerTick = packet.intervalPerTick;
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break;
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case 'sayText2':
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this.state.chat.push({
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kind: packet.kind,
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from: packet.from,
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text: packet.text,
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tick: this.state.tick
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});
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break;
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case 'stringTable':
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if (packet.tables.userinfo) {
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for (var j = 0; j < packet.tables.userinfo.length; j++) {
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if (packet.tables.userinfo[j].extraData) {
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var name = packet.tables.userinfo[j].extraData[0];
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var steamId = packet.tables.userinfo[j].extraData[2];
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var userId = packet.tables.userinfo[j].extraData[1].charCodeAt(0);
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this.state.users[userId] = {
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name : name,
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userId : userId,
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steamId: steamId,
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classes: {}
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}
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}
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}
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}
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break;
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case 'gameEvent':
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switch (packet.event.name) {
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case 'player_death':
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// todo get player names, not same id as the name string table
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var assister = packet.event.values.assister < 32 ? packet.event.values.assister : null;
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this.state.deaths.push({
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killer : packet.event.values.attacker,
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assister: assister,
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victim : packet.event.values.userid,
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weapon : packet.event.values.weapon,
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tick : this.state.tick
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});
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break;
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case 'teamplay_round_win':
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if (packet.event.values.winreason !== 6) {// 6 = timelimit
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this.state.rounds.push({
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winner : packet.event.values.team === 2 ? 'red' : 'blue',
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length : packet.event.values.round_time,
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end_tick: this.state.tick
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});
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}
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break;
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case 'player_spawn':
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userId = packet.event.values.userid;
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if (this.state.users[userId]) {
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if (!this.state.users[userId].team) { //only register first spawn
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this.state.users[userId].team = packet.event.values.team === 2 ? 'red' : 'blue'
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}
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var classId = packet.event.values.class;
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if (!this.state.users[userId].classes[classId]) {
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this.state.users[userId].classes[classId] = 0;
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}
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this.state.users[userId].classes[classId]++;
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}
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break;
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}
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break;
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}
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};
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Parser.prototype.readMessage = function (stream) {
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var type = stream.readBits(8);
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//console.log(type);
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if (type === Parser.MessageType.Stop) {
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return null;
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}
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var tick = stream.readInt32();
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var data, start, length, buffer;
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switch (type) {
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case Parser.MessageType.Sigon:
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case Parser.MessageType.Packet:
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stream.byteIndex += 0x54; // command/sequence info
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break;
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case Parser.MessageType.UserCmd:
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stream.byteIndex += 0x04; // unknown / outgoing sequence
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break;
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case Parser.MessageType.Stop:
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return false;
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case Parser.MessageType.SyncTick:
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return true;
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}
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length = stream.readInt32();
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start = stream.byteIndex;
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buffer = stream.buffer.slice(start, start + length);
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stream.byteIndex += length;
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return this.parseMessage(buffer, type, tick, length);
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};
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module.exports = Parser;
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